Ball-retainer for thrust ball-bearings.



c. A. T. SURENSEN.

BALL RETAINER FOR THRUST BALL APPLICATION FILED AUG.I4, I

BEARINGS.

Patented Feb. 1, 1916.

mZ/zesses and 7).

mi sans CARL AUGUST THEODQB SGBENSEN', 0F GOTTENBORG, SWEDEN, ASSIGNOR TO AKTIE- BOLAGET SVENSKA KULLAGEBFABRIKEN, 01 GOTTENIBGfiG, SVIEDEN, A CDRPOM- TION or swnnnn.

BALL-RETAINER FOR THRUST BALL-BEARINGS.

Application filed August 14, 191 s.

To aZZ whom it may-concern:

Be it known that I, CARL AUGUsT THEO- DOR SijRENSEN, a citizen of the Kingdom of Sweden, residing at Gottenborg, Sweden, have invented new and useful Improvements in Ball-Retainers for Thrust Ball-Bearings,

of which the following is a specification.

This invention relates to ball retainers for thrust ball bearings of the kind which consists of a member keeping the balls apart, and a ring surrounding and forming an outer support for the balls.

It hasalready been proposed to reduce the friction between the ball retainer and the balls by making the ring which supports the balls rotatable in relation to the part of the ball retainer keeping the balls apart. In such devices there is however no means provided for keeping the parts of the ball retainer centered relatively to each other which, under unfavorable circumstances,

can cause the balls to press strongly against the part of the ball retainer keeping the balls apart, resulting in wear and tear as well as seizing oi' the parts.

This invention has for its object to pre. vent the said drawbacks and consists, chiefly, in this that both main parts of the ball retainer are in such engagement with each other that a radial displacement of the parts over against each other is'prevented.

Since said both parts of the ball retainer, as mentioned above, should be rotatable in relation to each other, the said engagement is to be effected in such manner that the rotation can take place without hindrance.

These and other objects may be attained by means of the construction illustrated in the accompanying drawing in which Figures 1 to 4- inclusive show different sectional views of the invention.

Referring to Fig. 1, two plates at and b aresecured to each other by means of bolts 0 or the like and provided with apertures engaged by the balls so that the latter are kept apart in well known manner. The outer ring f forming an outer support for the balls isrotatable relatively to the plates (1. The engagement between the parts of thcball retainer is effected by the plates at and Z) being provided. with ai'inular re- I cusses a and b respectively provided on the sides facing the ring f, in which recesses the ring f fits tightly so that the parts of the ball Specification of Letters Patent.

Patented Eels. 11, 191

Serial no. eseyrse.

retainer are kept centered relatively to each other. Thisfconstructional form has proved to be practical as well as easy and cheap to manufacture." If desired, the engagement may be limited to one of the plates aor 5 only.

In the constructional form shown in Fig. 2 the ring fis provided on each side- -with annular recesses f engaged by the plates a and b. In other respects the device is substantially equal to that shown in Fig. 1.

The engagement between the two main parts of the ball retainer may also be effected by providing the plates a and b with annular flanges or projection a and 6 engaging corresponding grooves in the ring f,

as shown in Fig. 3, or by providing the ring j only and, consequently, at point 0 (the pole of rotation). The halls (i hear. t true, against the member a. in points lying on a circle, the center of which is located. on the axis of the bearing, but the pressure in these points is considerably sniallcrthan in outward direction e. in the direction of the centrifugal force) and on account thereof no friction detrimental to the bearing can arise at said points of engagement.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:

1. A ball retainer for thrust ballbearings, consisting of a ringshaped part for encircling the balls, and a ball retaining part, said parts being in such engagement with each other that they can rotate in relation to each othcr, while radial displacements of said parts in relation to each other are preventcd, substantially as and for the purpose set forth.

2. A ball retainer for thrust ball bearings, consisting of a ring-shapedipart for encircling the balls, and a ball retaining part composed of two perforated plates rigidly connected to each other, said parts being in such engagement with each other that they can rotate in relation to each other while radial displacements of said parts in relashoulders permitting relative rotation of the tion to each other are prevented, substanslates and ring and preventing relative ra tially as and for the purpose set forth. ial movement thereof.

3. A ball retainer for thrust ball bearings, In testimony whereof I have hereunto set 5 comprising a retaining part composed of my hand in presenee of two subscribing 1 two plates perforated for receiving the balls itnesses. u and spaced apart and rigidly connected, and CARL AUGUST THEODOR SORENSEN. a ring located in the space between the Witnesses: plates outwardly of the perforations, the K. E. WIBERG, l0 ring and plates having cooperative abutting I G. NORDSTBAND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ltatents,

Washington, D. c 

